Mica Parts Usded in Electric Arc Furnace Industry

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100 pc
Supply Capability:
100000 pc/month

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Product Description:

 1. Introduction:

Mica is a rigid substrate able to withstand very high temperatures and are suited for applications up to 500°F (260°C). Mica heating elements offer several distinct advantages over other flexible heater technologies, including extremely low leakage, lower material costs, and higher operating temperatures. Our mica heating element is made by detail order requirments.

Mica plate is made of mica paper with highperformance organic silicon resin. After heating and pressing, the mica plate can be made into rigid or flexible insulating plates. The mica content is about 90% and the organic silicon resin content is 10%.

2. Applications:

Typical applications of mica heating elements are air heaters, enclosure systems, food service equipment, process and packaging equipment.

 

3. Main features of Mica Parts:

Mica heating elements offer several distinct advantages over other flexible heater technologies, including extremely low leakage, lower material costs, and higher operating temperatures.

 

4. Technical Parameters:

 

MICA SHEET     -----Technical data

ITEM

UNIT

RM

RP

RM-T

RP-T

FM

FP

Hardness

 

Rigid

Rigid

Rigid

Rigid

Flexible

Flexible

Mica paper

 

Muscovite

Phlogopite

Muscovite

Phlogopite

Muscovite

Phlogopite

Thickness

mm

0.1-2.0

0.1-2.0

3.0-50

3.0-50

0.1-2.0

0.1-2.0

Mica content

%

≥90

≥90

>88

>88

≥90

≥90

Bond Content

%

<10< span="">

<10< span="">

<12< span="">

<12< span="">

<10< span="">

<10< span="">

Density

g/m 3

1.6~2.45

1.6~2.45

2.1~2.4

2.1~2.4

1.6~2.45

1.6~2.45

Heat
 Resistant

Continuous

500

700

500

700

500

700

Peak

700

900

700

900

700

900

Heat loss at 500

%

<1< span="">

<1< span="">

<1< span="">

<2< span="">

<1< span="">

<1< span="">

Heat loss at 700

%

<2< span="">

<2< span="">

<1< span="">

<2< span="">

<2< span="">

<2< span="">

Flexural strength

Mpa

>160

>140

<1< span="">

<1< span="">

Water absorption 24h/23°C

%

<1< span="">

<1< span="">

<1< span="">

<2< span="">

Dielectric strength

KV/mm

>20

>20

>15

>15

>15

>15

Volume
Resistivity

23

ΩNaN

>1017

>1017

>1017

>1017

500

ΩNaN

>1012

>1012

>1012

>1012

Smoking Test

s

<4< span="">

<4< span="">

 

FAQ

We have organized several common questions for our clients,may help you sincerely

--------What is the use of mica parts?

Mica laminate and washers made of our own high quality mica plates are used for home appliances, electro-magnets, micro-sensitive control gear etc

 

---------Which type of mica parts we can produce?

1. Rigid mica parts or Flexible mica parts

2. Muscovite mica parts or phlogopite mica parts

3. Thin mica parts or thick mica parts

4. All the special sized mica parts need drawing.

 

----------what advantages of mica parts?

1. Good high voltage insulation materials

2. Do not easily break up

3. Easily produce special size

 

Send a message to us:

Remaining: 4000 characters

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Q:What is the DMD insulation material?
These small mirrors are approximately 16 or 14 microns in size and are usually made up of an array of up to 50 to 2 million, with a gap between the mirrors of 1 micron and a mirror rotating with an aluminum hinge as a rotation axis 10- 12 degrees, can be used repeatedly 1 trillion, life test shows that in accordance with the usual use can be used for 100,000 hours. Its opening and closing control is through the mirror stop when the damping effect of the spring contact near the mirror, gradually reduce the way the additional voltage to achieve. DMD chip has been upgraded, the original chip on the microscope size of 16 microns, flip angle of 10 degrees, the current DMD micrometer size of 14 microns, flip 12 degrees, support 4K resolution chip has also been formed, the chip size of about 1.38 Inch.
Q:What is the thermal aging and electrical aging of insulating materials?
Electrical aging more common in high-voltage electrical appliances, the main mechanism is the occurrence of partial discharge of insulating material under high pressure, resulting in strong oxidant ozone. Ozone is easy to cause ozone cracking of the material. Partial discharge will produce nitrogen oxides, which combine with the moisture to produce nitric acid, corrosion of insulating materials; partial discharge of high-speed charged particles bombardment of insulating material molecules, will promote its ionization, fission and damage; in addition to local discharge will make dielectric loss Increased, local heat of the material, resulting in heat aging.
Q:Brass is not an insulating material?
Of course not, brass is still relatively good conductor blanket, and also has good thermal conductivity
Q:What kind of insulation is the insulating layer of the aluminum plate?
Ordinary heat conduction is made with fiberglass PP2. High thermal conductivity materials are made of thermally conductive
Q:What insulating material is best `?
Liquid insulation material, also known as insulating oil. Fill the internal or inter-electrode gap between the solid material to improve its dielectric properties and improve the cooling capacity of the equipment. Liquid insulation material high breakdown strength, dielectric loss tangent (tgσ) small, insulation resistance High specific dielectric constant, in addition, also has excellent physical and chemical properties, such as high gasification temperature, high flash point, low freezing point, thermal conductivity, thermal stability, in the electric field under the suction Small and so on.
Q:What are the electrical insulation materials
Electrical insulation materials are wood, cotton, paper, oily paint, asphalt paint, polyester film, glass cloth, mica, glass fiber, asbestos, composite silicon organic polyester paint, quartz, glass, porcelain material.
Q:What insulating materials are used for transformers
Some of the transformer plants in the United States, such as FPT in Virginia, have developed a NOMEX® Aromatic Polyamide using DuPont as a primary insulated dry-type transformer. FPT products are available in two models: FB type 180 ℃ (H level) of the insulation system. FH type 220 ℃ (C level) of the insulation system, the coil temperature rise were 115K (China 125K) and 150K. Its low-voltage coil is foil-type or multi-layer and laminated, and NOMEX® is used for both turn insulation and interlayer insulation. The high-pressure coil is a cake, and the wire is wrapped in NOMEX® paper. The barcakes do not have a conventional stay and a pad, and the comb is used to reduce the maximum voltage of the cake by half. The high-voltage coil of the axial short-circuit resistance, but increased the coil winding system and manufacturing time. High and low voltage coil for nesting, enhanced mechanical strength.
Q:Wear-resistant, high temperature, insulation materials which
Alumina - high temperature, corrosion resistance, wear resistance. Good electrical insulation 1600 ℃. For crucible, high temperature thermocouple casing, knives, mold and so on. Silicon nitride - has good high temperature strength, thermal expansion coefficient is small, high thermal conductivity, thermal shock resistance, the use of temperature as alumina, good electrical insulation. 1200 ℃ still have a high hardness. For mechanical seal ring, thermocouple casing, steam turbine blades and so on. Silicon carbide - high temperature strength, 1400 ℃ when the bending strength of (500 ~ 600) MPa. For the nozzle, furnace tubes, high temperature bearings, high temperature heat exchangers and so on.
Q:What is the 8 ° C rule for insulating materials?
The service life will be greatly shortened, such as ATR insulation material limit working temperature of 105 ℃, when the ultimate working temperature of 8, the life will be reduced by about half, which is the so-called 8 ℃ thermal deterioration rules
Q:The electrical equipment in the classroom which uses insulating material
Insulation material characteristics: chemical resistance with gloss, some transparent or translucent most of the good insulator light weight and strong processing can be easily mass production, cheap and wide range of uses, utility, easy to color, some high temperature

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